Badiator



J. GEMMIL.

. Damper.

Patented Aug. 8, 1854.

UNITED STATES PATENT OEEIOE. j N

JOHN GEMMIL, `OF MERCER COUNTY, PENNsiLvANrA.

. RADIATOR.

`Specicationof Letters Patent No. 11,481, dated August 8, 1854.

county of Mercer and State of Pennsyl? Vania, have invented a new and useful Improvement in Radiators; and Ido herebyl declare that he following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, forming part of this specification, in whichl Figure l is an elevation of the radiator and Ifig. is a section throughthe axis of the same, on line fr x of Fig. l.

Similar characters of reference in the several figures denote the same part of the apparatus. i

My invent-ion is designed to prevent the great loss of heat which is occasioned bythe ordinary construction of stove pipes, in consequence of the passage of the current through the pipe, in obedience to the known laws of heat, without producing the amount of radiation which a more favorable construction would afford.

It consistsin placing upon the stove, in the situation usually occupied by the rst two joints of pipe, a radiator of the form of two frustums of cones joined at their bases, and in suspending within this case a deflector and regulator consisting of an inverted cone, and right frustum united at their bases; `said deeotor and regulator being lined with some nonfconducting substance, and movable vertically as will be hereafter fully set forth.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

In the drawing A is the casing formed of two frustums of conesunited at their larger bases, the smaller base B of the lower frustumtting upon the stove and the other smaller base fitting the pipe. Within this cone is the deflector and regulator C suspended by the chain a passing over the pul- Hley Z) on the shaft c, which shaft is rotated by the crank d, and is held in any desired Aposition by the ratchet f and` pawl e. This defiector and regulator consists of an inverted cone D and'right frusturn E united at their bases, the cone and frustumhaving a lining 72, of some non-conducting substance.` The relative proportions of the several parts i are asfollows: The diameter of the largest portion of the oase is to the diameter of the pipe, as fifteen is to seven, and the ratio of the base of the cone D to the greatest diameter of the case as eight to fifteen, though these proportions need not be rigidly adhered to. In the lower portion ofthe case A is a small draft channel fm, closed by a door n; this is only designed for use when the chimney is low and the draft impeded, as in back buildings and other similar sitnations. 4

The operation of my improved radiator is as follows-The heat passing from the stove will by meeting the vertex of the cone D be deflected, and the central portion of the current which would otherwise `pass upward without producing any eect upon the casing will be brought into contact with the surface of the case and impart a large portion of its heat to the same, which will be diffused through the apartment by radia-` tion. This economy of heat by bringing into effective action a portion ofthe current which is usually suered to escape, causes a proportional decrease in the quantity of fuel required to produce a given amount of heat in an apartment, which saving in fuel has by experiment been found to be at least fifty per cent.-

The `non-conducting casing L prevents the absorption of heat by the deflector and permits the full effect of the column to act upon the radiating casing. The draft is regulated by the posit-ion ofthe deflector within the case, said defiector being raised and lowered by the turning of the shaft c as set forth in the drawings.

VVh-at I claim as my invention and desire to secure by Letters Patent, is- The suspension within a radiating case substantially as described, of a deflector and regulator constructed7 arranged, and operating, substantially as set forth, for the purpose specified. l

In` testimony whereof, I `have hereunto signed my name before two subscribing wit- JNO. `GEMMIL. 

